A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Aeration facility adapting to low incoming flow Froude number
The invention relates to an aeration facility adapting to a low incoming flow Froude number and a release structure. The facility is suitable for the field of water conservancy and hydropower engineering, and is mainly used for providing fully aerated water flow for the release structure under the condition of low Froude number incoming flow and preventing the release structure from cavitation damage. According to the technical scheme, the aeration facility adapting to the low incoming flow Froude number is arranged on a release structure and is characterized in that the aeration facility is provided with a flip bucket and a drop bucket which are sequentially arranged in the water flow direction, water flow forms a flip bucket water tongue after passing through the flip bucket, a bottom cavity located below the flip bucket water tongue is formed in the downstream of the drop bucket, the bottom cavity is connected with the outside atmosphere through the ventilation hole, and air is mixed into the bottom of water flow from the bottom cavity; and a turbulent part which can make water flow turbulent so as to uniformly mix air mixed into the bottom of the water flow to the whole overflowing cross section is arranged on the bottom plate of the release structure corresponding to a jetting and falling area of the deflecting water tongue.
本发明涉及一种适应低来流佛氏数的掺气设施及泄水建筑物。适用于水利水电工程领域，主要用于低佛氏数来流条件下，为泄水建筑物提供掺气充分的水流，防止泄水建筑物发生空蚀破坏。本发明所采用的技术方案是：一种适应低来流佛氏数的掺气设施，设置于泄水建筑物上，其特征在于：该掺气设施具有沿水流方向依次布置的挑坎和跌坎，水流经过挑坎后形成挑流水舌，所述跌坎下游形成有位于挑流水舌下方的底空腔，底空腔经通气孔口与外界大气相连，空气从底空腔掺入水流底部；所述泄水建筑物底板上对应所述挑流水舌的射落区域设有能使水流紊动、以将水流底部掺入的空气混匀至整个过流断面的紊动件。
Aeration facility adapting to low incoming flow Froude number
The invention relates to an aeration facility adapting to a low incoming flow Froude number and a release structure. The facility is suitable for the field of water conservancy and hydropower engineering, and is mainly used for providing fully aerated water flow for the release structure under the condition of low Froude number incoming flow and preventing the release structure from cavitation damage. According to the technical scheme, the aeration facility adapting to the low incoming flow Froude number is arranged on a release structure and is characterized in that the aeration facility is provided with a flip bucket and a drop bucket which are sequentially arranged in the water flow direction, water flow forms a flip bucket water tongue after passing through the flip bucket, a bottom cavity located below the flip bucket water tongue is formed in the downstream of the drop bucket, the bottom cavity is connected with the outside atmosphere through the ventilation hole, and air is mixed into the bottom of water flow from the bottom cavity; and a turbulent part which can make water flow turbulent so as to uniformly mix air mixed into the bottom of the water flow to the whole overflowing cross section is arranged on the bottom plate of the release structure corresponding to a jetting and falling area of the deflecting water tongue.
本发明涉及一种适应低来流佛氏数的掺气设施及泄水建筑物。适用于水利水电工程领域，主要用于低佛氏数来流条件下，为泄水建筑物提供掺气充分的水流，防止泄水建筑物发生空蚀破坏。本发明所采用的技术方案是：一种适应低来流佛氏数的掺气设施，设置于泄水建筑物上，其特征在于：该掺气设施具有沿水流方向依次布置的挑坎和跌坎，水流经过挑坎后形成挑流水舌，所述跌坎下游形成有位于挑流水舌下方的底空腔，底空腔经通气孔口与外界大气相连，空气从底空腔掺入水流底部；所述泄水建筑物底板上对应所述挑流水舌的射落区域设有能使水流紊动、以将水流底部掺入的空气混匀至整个过流断面的紊动件。
Aeration facility adapting to low incoming flow Froude number
适应低来流佛氏数的掺气设施
XU JIANRONG (author) / WU JIANHUA (author) / PENG YU (author) / XUE YANG (author) / MA FEI (author) / KONG LIANG (author) / HE JIA (author)
2022-02-08
Patent
Electronic Resource
Chinese
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
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